Finding the Fourth Proportional to 2,091.67, 2,886.53 and 1,147.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,091.67 : 2,886.53 = 1,147.46 : x
2. Step 2: Convert to fraction form
   2,091.67/2,886.53 = 1,147.46/x
3. Step 3: Cross multiply
   2,091.67x = 2,886.53 × 1,147.46
4. Step 4: Simplify right side
   2,091.67x = 3,312,182.06
5. Step 5: Solve for x
   x = 3,312,182.06/2,091.67
6. Step 6: Final answer
   x = 1,583.51